在不同的盐度条件下,珍珠斑点 (Etroplus suratensis) 的基因表达概况和生理适应
Pranali Marbade1, S A Shanmugam1, E Suresh1
1TNJFU Institute of Fisheries Post Graduate Studies, OMR Campus, Chennai, India.
International journal of biological macromolecules
|October 21, 2023
概括
珍珠斑 (Eutroplus suratensis) 水产养殖可以在15 ppt盐度下利. 这个水平支持生存和最佳的生理反应,不像较高的盐度导致显著的死亡率.
科学领域:
- 水产养殖是水产养殖的一种方式.
- 鱼类生理学 鱼类生理学
- 环境适应 环境适应
背景情况:
- 尤特罗普勒斯 (Eutroplus suratensis) 或珍珠斑自然居住在具有高盐度耐受性的河口环境中.
- 了解度影响对于优化珍珠斑点水产养殖的利能力至关重要.
研究的目的:
- 评估珍珠斑对不同盐度水平的适应性和生理调整.
- 为了确定珍珠斑适应广泛的盐度状态的潜力.
- 为了确定有利可图的珍珠斑点水产养殖的最佳盐度条件.
主要方法:
- 珍珠斑暴露于从0到75个百分点的盐度水平.
- 监测不同盐度处理的鱼类生存率.
- 分析肝脏组织中的基因表达,包括IGF-1,HSP70,OSTF1,SOD,CAT和NKAmRNA.
主要成果:
- 在0,15,25和35 ppt时没有观察到死亡率.
- 显著的死亡率发生在45 ppt (44%) 和100%的死亡率在60和75 ppt.
- 基因表达分析显示,在特定盐度水平下,IGF-1,HSP70,OSTF1,SOD,CAT和NKAmRNA显著增加,特别是15和25 ppt.
结论:
- 15 ppt的盐度水平被确定为珍珠斑水产养殖的可行和潜在的有利可图的条件.
- 珍珠斑表现出生理适应,由基因表达变化表明,耐受中等盐度增加.
- 较高的盐度水平 (≥45 ppt) 给Eutroplus suratensis带来了重大的生存挑战.
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